Permanent magnet motor equipped with dustproof structure

Abstract

The utility model discloses a permanent magnet motor equipped with a dustproof structure, which comprises a motor body, one side of the motor body is detachably connected with an end cover with a vent hole, the surface of the end cover is slidably provided with a connecting cylinder, and the top and bottom of the surface of the end cover are fixedly connected with limiting shafts on the same vertical axis. A through first limiting groove is formed in the end face, close to the end cover, of the connecting cylinder. A connecting cylinder is pushed to enable a first limiting groove formed in the surface of the connecting cylinder to slide on the outer surface of a limiting shaft, then the connecting cylinder is rotated to enable the limiting shaft to slide on the inner surface of a second limiting groove, and therefore clamping connection between the connecting cylinder and the end cover is achieved; under the action of airflow, if particle ash is in contact with the filter screen, the ash can be bounced through the elasticity of the elastic assembly, so that the ash is prevented from being accumulated on the surface of the filter screen, and dust or the ash is prevented from entering the vent holes.

Description

Technical Field

[0001] The utility model belongs to the technical field of permanent magnet motors, in particular to a permanent magnet motor with a dustproof structure. Background Art

[0002] Permanent magnet synchronous motors use permanent magnets to provide excitation, which makes the motor structure simpler, reduces processing and assembly costs, and eliminates slip rings and brushes that are prone to problems, thereby improving the reliability of motor operation.

[0003] When a permanent magnet motor is in use, an end cover on one side generally has a vent hole to maintain airflow or heat dissipation. Due to the action of the airflow, a large amount of dust will be adsorbed at the location of the vent hole. At the same time, in some more complex environments, larger particles of ash may be inhaled. For this reason, we propose a permanent magnet motor with a dustproof structure to solve the above-mentioned deficiencies. Utility Model Content

[0004] The utility model aims to provide a permanent magnet motor equipped with a dustproof structure, which can prevent dust or ash from entering the vent holes of the end cover, thereby achieving the purpose of dustproofing and solving the above-mentioned background technical problems.

[0005] The utility model solves the above-mentioned technical problems through the following technical solutions: A permanent magnet motor equipped with a dustproof structure comprises a motor body, an end cover with a vent hole detachably connected to one side of the motor body, a connecting cylinder slidably arranged on the surface of the end cover, the top and bottom of the end cover surface and located on the same vertical axis are fixedly connected to a limiting shaft, a through limiting groove 1 is provided on the end face of the connecting cylinder close to the end cover, the surface of the connecting cylinder is connected to limiting groove 2 at a position 90 degrees to the limiting groove 1, the surface of the limiting shaft can be slidably connected to the inner surfaces of limiting groove 1 and limiting groove 2, a protective cover is slidably arranged on the surface of the connecting cylinder, a filter screen is embedded and fixedly connected to the inner surface of the protective cover, an elastic component is fixedly arranged on the inner surface of the connecting cylinder, and the elastic component is fixedly connected to the connection between the entity on one side of the filter screen.

[0006] Preferably, the elastic component includes a cylinder body fixedly connected to the inner ring of the connecting cylinder, the inner surface of the cylinder body is slidably connected with a sliding handle, the axis of the sliding handle is fixedly connected with a guide rod, the surface of the guide rod is sleeved with a spring, one end of the spring is fixedly connected to the side wall of the inner cavity of the cylinder, the other end of the spring is fixedly connected to one end face of the sliding handle, and one side of the guide rod is fixedly connected to the physical connecting surface of the filter.

[0007] Preferably, through holes for the guide rod to slide through are provided on both sides of the inner cavity of the cylinder.

[0008] Preferably, the interior of the protective cover is a cavity structure, and the end surface of the protective cover close to the connecting tube is fixedly connected with a convex edge of a hollow structure, and the inner surface of the convex edge is tightly fitted with the outer surface of the connecting tube.

[0009] Preferably, the second limiting groove is designed in a quarter arc shape, and when the limiting shaft slides to the end of the first limiting groove, it rotates to the inner surface of the second limiting groove and is slidably connected to the inner surface of the second limiting groove.

[0010] 1. The beneficial effect of the utility model is as follows: the utility model pushes the connecting cylinder so that the limiting groove 1 opened on its surface slides on the outer surface of the limiting shaft, and then rotates the connecting cylinder so that the limiting shaft slides on the inner surface of the limiting groove 2, thereby realizing the clamping connection between the connecting cylinder and the end cover. Under the operation of the motor body and the flow of airflow, the filter on the inner surface of the protective cover blocks dust. Under the action of the airflow, if the granular ash touches the filter, the ash will be bounced up due to the elasticity of the elastic component itself, thereby preventing the ash from accumulating on the surface of the filter, thereby preventing dust or ash from entering the vent hole, thereby achieving the dustproof effect.

[0011] 2. In the utility model, when large particles of ash come into contact with the filter, the guide rod drives the sliding handle to slide on the inner surface of the cylinder and compresses the spring at the same time. Under the elastic action of the spring itself, the guide rod lifts the protective cover to move, thereby bouncing off the dust particles on the surface of the filter.

[0012] 3. The utility model prevents the gap between the protective cover and the connecting tube from being too large by providing a convex edge, and also facilitates the sliding of the protective cover on the surface of the connecting tube.

[0013] 4. The utility model sets the second limiting groove as a quarter arc design, which facilitates the engagement between the connecting tube and the end cover, thereby achieving the effect of convenient disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] in:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the disassembly of the structure of the utility model;

[0017] Figure 3 It is a partial enlarged view of point A of the utility model;

[0018] Figure 4 It is a schematic diagram of the splitting of the structure of the utility model from the left side perspective.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Motor body; 2. Protective cover; 3. Filter; 4. End cover; 5. Limiting shaft; 6. Connecting cylinder; 7. Limiting groove 1; 8. Limiting groove 2; 9. Cylinder body; 10. Sliding handle; 11. Guide rod; 12. Spring; 13. Convex edge. DETAILED DESCRIPTION

[0021] Hereinafter, embodiments of a permanent magnet motor equipped with a dustproof structure according to the present invention will be described with reference to the accompanying drawings.

[0022] Embodiment 1:

[0023] Figure 1-4A permanent magnet motor with a dustproof structure installed in an embodiment of the utility model is shown, comprising a motor body 1, an end cover 4 with a vent hole detachably connected to one side of the motor body 1, a connecting cylinder 6 is slidably provided on the surface of the end cover 4, the top and bottom of the surface of the end cover 4 and located on the same vertical axis are fixedly connected to a limiting shaft 5, a through limiting groove 1 7 is provided on the end surface of the connecting cylinder 6 close to the end cover 4, the surface of the connecting cylinder 6 is connected to the limiting groove 2 8 at a position of 90 degrees to the limiting groove 1 7, the surface of the limiting shaft 5 can be slidably connected to the inner surfaces of the limiting groove 1 7 and the limiting groove 2 8, and a protective cover 2 is slidably provided on the surface of the connecting cylinder 6. The limiting groove 2 8 is designed as a quarter arc. When the limiting shaft 5 slides to the end of the limiting groove 1 7, it rotates to the inner surface of the limiting groove 2 8 and is slidably connected to the inner surface of the limiting groove 2 8. By setting the limiting groove 2 8 as a quarter arc design, it is convenient to engage between the connecting cylinder 6 and the end cover 4, so as to facilitate disassembly and assembly. The inner surface of the protective cover 2 is embedded and fixedly connected with the filter screen 3. The inner surface of the connecting cylinder 6 is fixedly provided with an elastic component. The elastic component includes a cylinder body 9 fixedly connected to the inner ring of the connecting cylinder 6. The inner surface of the cylinder body 9 is slidably connected with a sliding handle 10. The axis of the sliding handle 10 is fixedly connected with a guide rod 11. A spring 12 is sleeved on the surface, one end of the spring 12 is fixedly connected to the side wall of the inner cavity of the cylinder 9, the other end of the spring 12 is fixedly connected to one end face of the sliding handle 10, one side of the guide rod 11 is fixedly connected to the physical connection surface of the filter screen 3, and through holes for the guide rod 11 to slide through are provided on both sides of the inner cavity of the cylinder 9. When large particles of ash touch the filter screen 3, the guide rod 11 will drive the sliding handle 10 to slide on the inner surface of the cylinder 9 and compress the spring 12 at the same time. Under the elastic action of the spring 12 itself, the guide rod 11 will lift the protective cover 2 to move, thereby bouncing off the dust particles on the surface of the filter screen 3, and the elastic component and the entity on one side of the filter screen 3 are connected. The connection is fixed, and the connection tube 6 is pushed so that the limit groove 1 7 opened on its surface slides on the outer surface of the limit shaft 5, and then the connection tube 6 is rotated so that the limit shaft 5 slides on the inner surface of the limit groove 2 8, thereby realizing the clamping connection between the connection tube 6 and the end cover 4. Under the operation of the motor body 1 and the flow of airflow, the filter 3 on the inner surface of the protective cover 2 blocks the dust. Under the action of the airflow, if the granular ash touches the filter 3, the ash will be bounced up due to the elasticity of the elastic component itself, thereby preventing the ash from accumulating on the surface of the filter 3, thereby preventing dust or ash from entering the vent, thereby achieving the dustproof effect.

[0024] Embodiment 2:

[0025] Figure 1-4A permanent magnet motor with a dustproof structure installed in an embodiment of the utility model is shown, comprising a motor body 1, an end cover 4 with a vent hole is detachably connected to one side of the motor body 1, a connecting cylinder 6 is slidably provided on the surface of the end cover 4, the top and bottom of the surface of the end cover 4 and are fixedly connected to a limiting shaft 5 located on the same vertical axis, a through limiting groove 1 7 is provided on the end surface of the connecting cylinder 6 close to the end cover 4, the surface of the connecting cylinder 6 is connected to the limiting groove 2 8 at a position of 90 degrees to the limiting groove 1 7, and the surface of the limiting shaft 5 can be slidably connected to the inner surfaces of the limiting groove 1 7 and the limiting groove 2 8 A protective cover 2 is slidably provided on the surface of the connecting tube 6, and a filter screen 3 is embedded and fixedly connected to the inner surface of the protective cover 2. An elastic component is fixedly provided on the inner surface of the connecting tube 6, and the elastic component is fixedly connected to the connection between the elastic component and the entity on one side of the filter screen 3. The interior of the protective cover 2 is a cavity structure, and the end surface of the protective cover 2 close to the connecting tube 6 is fixedly connected with a convex edge 13 of a hollow structure, and the inner surface of the convex edge 13 is tightly fitted with the outer surface of the connecting tube 6. By setting the convex edge 13, the gap between the protective cover 2 and the connecting tube 6 is avoided from being too large, and it is also convenient for the protective cover 2 to slide on the surface of the connecting tube 6.

[0026] Working principle: The utility model pushes the connecting cylinder 6 so that the limiting groove 1 7 opened on its surface slides on the outer surface of the limiting shaft 5, and then rotates the connecting cylinder 6 so that the limiting shaft 5 slides on the inner surface of the limiting groove 2 8, thereby realizing the clamping connection between the connecting cylinder 6 and the end cover 4. Under the operation of the motor body 1 and the flow of airflow, the filter 3 on the inner surface of the protective cover 2 blocks the dust. Under the action of the airflow, if the granular ash touches the filter 3, when the large granular ash touches the filter 3, the guide rod 11 will drive the sliding handle 10 to slide on the inner surface of the cylinder body 9 and compress the spring 12 at the same time. Under the elastic action of the spring 12 itself, the guide rod 11 will lift the protective cover 2 to move, thereby bouncing off the dust particles on the surface of the filter 3, thereby preventing the ash from accumulating on the surface of the filter 3, and further preventing dust or ash from entering the vent.

Claims

1. A permanent magnet motor equipped with a dustproof structure, comprising a motor body (1), one side of the motor body (1) being detachably connected to an end cover (4) having a vent hole, characterized in that: The surface of the end cover (4) is slidably provided with a connecting tube (6); the top and bottom of the surface of the end cover (4) are fixedly connected to a limiting shaft (5) located on the same vertical axis; the end surface of the connecting tube (6) close to the end cover (4) is provided with a through limiting groove 1 (7); the surface of the connecting tube (6) is connected to limiting groove 2 (8) at a position 90 degrees to the limiting groove 1 (7); the surface of the limiting shaft (5) can be slidably connected to the inner surfaces of limiting groove 1 (7) and limiting groove 2 (8); the surface of the connecting tube (6) is slidably provided with a protective cover (2); the inner surface of the protective cover (2) is embedded and fixedly connected to a filter screen (3); the inner surface of the connecting tube (6) is fixedly provided with an elastic component; the elastic component is fixedly connected to the connection point of the entity on one side of the filter screen (3).

2. A permanent magnet motor with a dustproof structure according to claim 1, characterized in that: The elastic component comprises a cylinder (9) fixedly connected to the inner ring of the connecting cylinder (6); a sliding handle (10) is slidably connected to the inner surface of the cylinder (9); a guide rod (11) is fixedly connected to the axis of the sliding handle (10); a spring (12) is sleeved on the surface of the guide rod (11); one end of the spring (12) is fixedly connected to the side wall of the inner cavity of the cylinder (9); the other end of the spring (12) is fixedly connected to one end surface of the sliding handle (10); and one side of the guide rod (11) is fixedly connected to the physical connection surface of the filter screen (3).

3. A permanent magnet motor with a dustproof structure according to claim 2, characterized in that: Through holes for the guide rod (11) to slide through are provided on both sides of the inner cavity of the cylinder (9).

4. The permanent magnet motor with a dustproof structure according to claim 1, characterized in that: The interior of the protective cover (2) is a cavity structure, and the end surface of the protective cover (2) close to the connecting tube (6) is fixedly connected to a convex edge (13) of a hollow structure, and the inner surface of the convex edge (13) is tightly fitted with the outer surface of the connecting tube (6).

5. The permanent magnet motor with a dustproof structure according to claim 1, characterized in that: The second limiting groove (8) is designed as a quarter arc. When the limiting shaft (5) slides to the end of the first limiting groove (7), it rotates to the inner surface of the second limiting groove (8) and is slidably connected with the inner surface of the second limiting groove (8).

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